--- _id: '2634' abstract: - lang: eng text: To better understand the role of neurotransmitter receptors in neuronal differentiation and maturation a detailed knowledge of their identity, location and function in the plasma membrane of specific neuronal populations during development is required. Combining pre-embedding immunocytochemistry with cell tracking in embryonic brain slice cultures we show that virtually all neurons (∼98%) migrating through the lower intermediate zone (LIZ) on their way from the medial ganglionic eminence to the cerebral cortex, express GABA BR1. Blockade of GABABRs with a specific antagonist, CGP52432, resulted in a concentration-dependent accumulation of these tangentially migrating neurons in the ventricular/subventricular zones (VZ/SVZ) of the cortex and fewer cells were observed in the cortical plate/marginal zone (CP/MZ) and LIZ. Moreover, they had significantly shorter leading processes compared with similar migrating cells in control slices. Electrophysiological recording in LIZ and CP cells revealed no direct effect of either CGP52432 or the GABABR agonist, baclofen, on resting membrane properties suggesting that the effect of CGP52432 on migration might be mediated through a metabotropic action or the regulation of release of factors controlling migration. These results suggest that GABABRs have an important modulatory role in the migration of cortical interneurons. author: - first_name: Guillermina full_name: López-Bendito, Guillermina last_name: López Bendito - first_name: Rafael full_name: Luján, Rafael last_name: Luján - first_name: Ryuichi full_name: Ryuichi Shigemoto id: 499F3ABC-F248-11E8-B48F-1D18A9856A87 last_name: Shigemoto orcid: 0000-0001-8761-9444 - first_name: Paul full_name: Ganter, Paul last_name: Ganter - first_name: Ole full_name: Paulsen, Ole last_name: Paulsen - first_name: Zoltán full_name: Molnár, Zoltán last_name: Molnár citation: ama: López Bendito G, Luján R, Shigemoto R, Ganter P, Paulsen O, Molnár Z. Blockade of GABAB receptors alters the tangential migration of cortical neurons. Cerebral Cortex. 2003;13(9):932-942. doi:10.1093/cercor/13.9.932 apa: López Bendito, G., Luján, R., Shigemoto, R., Ganter, P., Paulsen, O., & Molnár, Z. (2003). Blockade of GABAB receptors alters the tangential migration of cortical neurons. Cerebral Cortex. Oxford University Press. https://doi.org/10.1093/cercor/13.9.932 chicago: López Bendito, Guillermina, Rafael Luján, Ryuichi Shigemoto, Paul Ganter, Ole Paulsen, and Zoltán Molnár. “Blockade of GABAB Receptors Alters the Tangential Migration of Cortical Neurons.” Cerebral Cortex. Oxford University Press, 2003. https://doi.org/10.1093/cercor/13.9.932. ieee: G. López Bendito, R. Luján, R. Shigemoto, P. Ganter, O. Paulsen, and Z. Molnár, “Blockade of GABAB receptors alters the tangential migration of cortical neurons,” Cerebral Cortex, vol. 13, no. 9. Oxford University Press, pp. 932–942, 2003. ista: López Bendito G, Luján R, Shigemoto R, Ganter P, Paulsen O, Molnár Z. 2003. Blockade of GABAB receptors alters the tangential migration of cortical neurons. Cerebral Cortex. 13(9), 932–942. mla: López Bendito, Guillermina, et al. “Blockade of GABAB Receptors Alters the Tangential Migration of Cortical Neurons.” Cerebral Cortex, vol. 13, no. 9, Oxford University Press, 2003, pp. 932–42, doi:10.1093/cercor/13.9.932. short: G. López Bendito, R. Luján, R. Shigemoto, P. Ganter, O. Paulsen, Z. Molnár, Cerebral Cortex 13 (2003) 932–942. date_created: 2018-12-11T11:58:47Z date_published: 2003-09-01T00:00:00Z date_updated: 2021-01-12T06:58:43Z day: '01' doi: 10.1093/cercor/13.9.932 extern: 1 intvolume: ' 13' issue: '9' month: '09' page: 932 - 942 publication: Cerebral Cortex publication_status: published publisher: Oxford University Press publist_id: '4264' quality_controlled: 0 status: public title: Blockade of GABAB receptors alters the tangential migration of cortical neurons type: journal_article volume: 13 year: '2003' ... --- _id: '2630' abstract: - lang: eng text: Taste-metabotropic glutamate receptor 4 (taste-mGluR4) and the heteromers of T1R1 and T1R3 are candidate receptors involved in the sense of umami (monosodium glutamate) taste. Although the expression of group III mGluRs (taste-mGluR4) has been demonstrated in taste tissues, no mention has been made of the expression of group I mGluRs (mGluR1 and mGluR5) in taste tissues. We examined the expression of mGluR1 and mGluR5 in rat gustatory tissues by using reverse transcription-polymerase chain reaction (RT-PCR), in situ hybridization, immunohistochemistry and immunoelectron microscopy. RT-PCR assay showed that mGluR1α and mGluR1β mRNAs were expressed in circumvallate papillae, but mGluR5 mRNA was not expressed. The positive signals of mGluR1 mRNA were detected only in circumvallate taste buds by in situ hybridization analysis. In cryosections of fungiform, foliate and circumvallate papillae, the antibody against mGluRla gave intense labeling on the taste hairs in all taste pores examined. In the developing taste buds, the positive signals of mGluR1α in taste hairs gradually increased with the increase in number of taste bud cells. These results show that, in addition to taste-mGluR4 and the heteromer of T1R1 and T1R3, mGluR1α may function as a receptor for glutamate (umami) taste sensation. author: - first_name: Takashi full_name: Toyono, Takashi last_name: Toyono - first_name: Yuji full_name: Seta, Yuji last_name: Seta - first_name: Shinji full_name: Kataoka, Shinji last_name: Kataoka - first_name: Shintaro full_name: Kawano, Shintaro last_name: Kawano - first_name: Ryuichi full_name: Ryuichi Shigemoto id: 499F3ABC-F248-11E8-B48F-1D18A9856A87 last_name: Shigemoto orcid: 0000-0001-8761-9444 - first_name: Kuniaki full_name: Toyoshima, Kuniaki last_name: Toyoshima citation: ama: Toyono T, Seta Y, Kataoka S, Kawano S, Shigemoto R, Toyoshima K. Expression of metabotropic glutamate receptor group I in rat gustatory papillae. Cell and Tissue Research. 2003;313(1):29-35. doi:10.1007/s00441-003-0740-2 apa: Toyono, T., Seta, Y., Kataoka, S., Kawano, S., Shigemoto, R., & Toyoshima, K. (2003). Expression of metabotropic glutamate receptor group I in rat gustatory papillae. Cell and Tissue Research. Springer. https://doi.org/10.1007/s00441-003-0740-2 chicago: Toyono, Takashi, Yuji Seta, Shinji Kataoka, Shintaro Kawano, Ryuichi Shigemoto, and Kuniaki Toyoshima. “Expression of Metabotropic Glutamate Receptor Group I in Rat Gustatory Papillae.” Cell and Tissue Research. Springer, 2003. https://doi.org/10.1007/s00441-003-0740-2. ieee: T. Toyono, Y. Seta, S. Kataoka, S. Kawano, R. Shigemoto, and K. Toyoshima, “Expression of metabotropic glutamate receptor group I in rat gustatory papillae,” Cell and Tissue Research, vol. 313, no. 1. Springer, pp. 29–35, 2003. ista: Toyono T, Seta Y, Kataoka S, Kawano S, Shigemoto R, Toyoshima K. 2003. Expression of metabotropic glutamate receptor group I in rat gustatory papillae. Cell and Tissue Research. 313(1), 29–35. mla: Toyono, Takashi, et al. “Expression of Metabotropic Glutamate Receptor Group I in Rat Gustatory Papillae.” Cell and Tissue Research, vol. 313, no. 1, Springer, 2003, pp. 29–35, doi:10.1007/s00441-003-0740-2. short: T. Toyono, Y. Seta, S. Kataoka, S. Kawano, R. Shigemoto, K. Toyoshima, Cell and Tissue Research 313 (2003) 29–35. date_created: 2018-12-11T11:58:46Z date_published: 2003-07-01T00:00:00Z date_updated: 2021-01-12T06:58:41Z day: '01' doi: 10.1007/s00441-003-0740-2 extern: 1 intvolume: ' 313' issue: '1' month: '07' page: 29 - 35 publication: Cell and Tissue Research publication_status: published publisher: Springer publist_id: '4267' quality_controlled: 0 status: public title: Expression of metabotropic glutamate receptor group I in rat gustatory papillae type: journal_article volume: 313 year: '2003' ... --- _id: '2637' abstract: - lang: eng text: While the cholinergic depletion in Alzheimer's disease (AD) has been known for some time, a definitive involvement of other neurotransmitter systems has been somewhat more elusive. Our study demonstrates a clear involvement of both glutamatergic and, to a lesser extent, GABAergic neurons in an early onset transgenic mouse model of AD-like amyloid pathology. Immunohistochemical staining and subsequent quantification has revealed a statistically significant increased density of glutamatergic and GABAergic presynaptic boutons in both the plaque free and plaque adjacent cortical neuropile areas of transgenic mice as compared to non-transgenic controls. Furthermore, amyloid plaque size was shown to have a statistically significant effect on the relative area occupied by dystrophic glutamatergic neurites in the peri-plaque neuropile. These findings support our hypothesis that the amyloid pathology progresses in a time and neurotransmitter specific manner, first in the cholinergic system which appears to be most vulnerable, followed by the glutamatergic presynaptic boutons and finally the somewhat more resilient GABAergic terminals. author: - first_name: Karen full_name: Bell, Karen F last_name: Bell - first_name: G J full_name: De Kort, G J last_name: De Kort - first_name: S full_name: Steggerda, S last_name: Steggerda - first_name: Ryuichi full_name: Ryuichi Shigemoto id: 499F3ABC-F248-11E8-B48F-1D18A9856A87 last_name: Shigemoto orcid: 0000-0001-8761-9444 - first_name: Alfredo full_name: Ribeiro-da-Silva, Alfredo last_name: Ribeiro Da Silva - first_name: Augusto full_name: Cuello, Augusto C last_name: Cuello citation: ama: Bell K, De Kort GJ, Steggerda S, Shigemoto R, Ribeiro Da Silva A, Cuello A. Structural involvement of the glutamatergic presynaptic boutons in a transgenic mouse model expressing early onset amyloid pathology. Neuroscience Letters. 2003;353(2):143-147. doi:10.1016/j.neulet.2003.09.027 apa: Bell, K., De Kort, G. J., Steggerda, S., Shigemoto, R., Ribeiro Da Silva, A., & Cuello, A. (2003). Structural involvement of the glutamatergic presynaptic boutons in a transgenic mouse model expressing early onset amyloid pathology. Neuroscience Letters. Elsevier. https://doi.org/10.1016/j.neulet.2003.09.027 chicago: Bell, Karen, G J De Kort, S Steggerda, Ryuichi Shigemoto, Alfredo Ribeiro Da Silva, and Augusto Cuello. “Structural Involvement of the Glutamatergic Presynaptic Boutons in a Transgenic Mouse Model Expressing Early Onset Amyloid Pathology.” Neuroscience Letters. Elsevier, 2003. https://doi.org/10.1016/j.neulet.2003.09.027. ieee: K. Bell, G. J. De Kort, S. Steggerda, R. Shigemoto, A. Ribeiro Da Silva, and A. Cuello, “Structural involvement of the glutamatergic presynaptic boutons in a transgenic mouse model expressing early onset amyloid pathology,” Neuroscience Letters, vol. 353, no. 2. Elsevier, pp. 143–147, 2003. ista: Bell K, De Kort GJ, Steggerda S, Shigemoto R, Ribeiro Da Silva A, Cuello A. 2003. Structural involvement of the glutamatergic presynaptic boutons in a transgenic mouse model expressing early onset amyloid pathology. Neuroscience Letters. 353(2), 143–147. mla: Bell, Karen, et al. “Structural Involvement of the Glutamatergic Presynaptic Boutons in a Transgenic Mouse Model Expressing Early Onset Amyloid Pathology.” Neuroscience Letters, vol. 353, no. 2, Elsevier, 2003, pp. 143–47, doi:10.1016/j.neulet.2003.09.027. short: K. Bell, G.J. De Kort, S. Steggerda, R. Shigemoto, A. Ribeiro Da Silva, A. Cuello, Neuroscience Letters 353 (2003) 143–147. date_created: 2018-12-11T11:58:48Z date_published: 2003-12-19T00:00:00Z date_updated: 2021-01-12T06:58:44Z day: '19' doi: 10.1016/j.neulet.2003.09.027 extern: 1 intvolume: ' 353' issue: '2' month: '12' page: 143 - 147 publication: Neuroscience Letters publication_status: published publisher: Elsevier publist_id: '4262' quality_controlled: 0 status: public title: Structural involvement of the glutamatergic presynaptic boutons in a transgenic mouse model expressing early onset amyloid pathology type: journal_article volume: 353 year: '2003' ... --- _id: '2784' abstract: - lang: eng text: We report the results of an experimental study of magnetohydrodynamic damping of sidewall convection in a rectangular enclosure filled with gallium. In particular we investigate the suppression of convection when a steady magnetic field is applied separately in each of the three principal directions of the flow. The strongest damping of the steady flow is found for a vertical magnetic field, which is in agreement with theory. However, we observe that the application of a field transverse to the flow provides greater damping than a longitudinal one, which seems to contradict available theory. We provide a possible resolution of this apparent dichotomy in terms of the length scale of the experiment. author: - first_name: Björn full_name: Björn Hof id: 3A374330-F248-11E8-B48F-1D18A9856A87 last_name: Hof orcid: 0000-0003-2057-2754 - first_name: Anne full_name: Juel, Anne last_name: Juel - first_name: Tom full_name: Mullin, Tom P last_name: Mullin citation: ama: Hof B, Juel A, Mullin T. Magnetohydrodynamic damping of convective flows in molten gallium. Journal of Fluid Mechanics. 2003;482:163-179. doi:10.1017/S0022112003004014 apa: Hof, B., Juel, A., & Mullin, T. (2003). Magnetohydrodynamic damping of convective flows in molten gallium. Journal of Fluid Mechanics. Cambridge University Press. https://doi.org/10.1017/S0022112003004014 chicago: Hof, Björn, Anne Juel, and Tom Mullin. “Magnetohydrodynamic Damping of Convective Flows in Molten Gallium.” Journal of Fluid Mechanics. Cambridge University Press, 2003. https://doi.org/10.1017/S0022112003004014. ieee: B. Hof, A. Juel, and T. Mullin, “Magnetohydrodynamic damping of convective flows in molten gallium,” Journal of Fluid Mechanics, vol. 482. Cambridge University Press, pp. 163–179, 2003. ista: Hof B, Juel A, Mullin T. 2003. Magnetohydrodynamic damping of convective flows in molten gallium. Journal of Fluid Mechanics. 482, 163–179. mla: Hof, Björn, et al. “Magnetohydrodynamic Damping of Convective Flows in Molten Gallium.” Journal of Fluid Mechanics, vol. 482, Cambridge University Press, 2003, pp. 163–79, doi:10.1017/S0022112003004014. short: B. Hof, A. Juel, T. Mullin, Journal of Fluid Mechanics 482 (2003) 163–179. date_created: 2018-12-11T11:59:35Z date_published: 2003-05-13T00:00:00Z date_updated: 2021-01-12T06:59:42Z day: '13' doi: 10.1017/S0022112003004014 extern: 1 intvolume: ' 482' month: '05' page: 163 - 179 publication: Journal of Fluid Mechanics publication_status: published publisher: Cambridge University Press publist_id: '4105' quality_controlled: 0 status: public title: Magnetohydrodynamic damping of convective flows in molten gallium type: journal_article volume: 482 year: '2003' ... --- _id: '2785' abstract: - lang: eng text: Experimental evidence for the scaling of the finite amplitude of perturbation theory required to promote transition in Poiseuille flow was found. The exponent is -1 and was uncovered using considerable care in the design and execution of the experiment. Interestingly, this exponent was also found in experiments on transition in boundary layers. author: - first_name: Björn full_name: Björn Hof id: 3A374330-F248-11E8-B48F-1D18A9856A87 last_name: Hof orcid: 0000-0003-2057-2754 - first_name: Anne full_name: Juel, Anne last_name: Juel - first_name: Tom full_name: Mullin, Tom P last_name: Mullin citation: ama: Hof B, Juel A, Mullin T. Scaling of the turbulence transition threshold in a pipe. Physical Review Letters. 2003;91(24):244502/1-244502/4. doi:10.1103/PhysRevLett.91.244502 apa: Hof, B., Juel, A., & Mullin, T. (2003). Scaling of the turbulence transition threshold in a pipe. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.91.244502 chicago: Hof, Björn, Anne Juel, and Tom Mullin. “Scaling of the Turbulence Transition Threshold in a Pipe.” Physical Review Letters. American Physical Society, 2003. https://doi.org/10.1103/PhysRevLett.91.244502. ieee: B. Hof, A. Juel, and T. Mullin, “Scaling of the turbulence transition threshold in a pipe,” Physical Review Letters, vol. 91, no. 24. American Physical Society, p. 244502/1-244502/4, 2003. ista: Hof B, Juel A, Mullin T. 2003. Scaling of the turbulence transition threshold in a pipe. Physical Review Letters. 91(24), 244502/1-244502/4. mla: Hof, Björn, et al. “Scaling of the Turbulence Transition Threshold in a Pipe.” Physical Review Letters, vol. 91, no. 24, American Physical Society, 2003, p. 244502/1-244502/4, doi:10.1103/PhysRevLett.91.244502. short: B. Hof, A. Juel, T. Mullin, Physical Review Letters 91 (2003) 244502/1-244502/4. date_created: 2018-12-11T11:59:35Z date_published: 2003-12-12T00:00:00Z date_updated: 2021-01-12T06:59:42Z day: '12' doi: 10.1103/PhysRevLett.91.244502 extern: 1 intvolume: ' 91' issue: '24' month: '12' page: 244502/1 - 244502/4 publication: Physical Review Letters publication_status: published publisher: American Physical Society publist_id: '4104' quality_controlled: 0 status: public title: Scaling of the turbulence transition threshold in a pipe type: journal_article volume: 91 year: '2003' ... --- _id: '2990' abstract: - lang: eng text: Plant growth is marked by its adaptability to continuous changes in environment. A regulated, differential distribution of auxin underlies many adaptation processes including organogenesis, meristem patterning and tropisms. In executing its multiple roles, auxin displays some characteristics of both a hormone and a morphogen. Studies on auxin transport, as well as tracing the intracellular movement of its molecular components, have suggested a possible scenario to explain how growth plasticity is conferred at the cellular and molecular level. The plant perceives stimuli and changes the subcellular position of auxin-transport components accordingly. These changes modulate auxin fluxes, and the newly established auxin distribution triggers the corresponding developmental response. author: - first_name: Jirí full_name: Friml, Jirí id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Friml J. Auxin transport - Shaping the plant. Current Opinion in Plant Biology. 2003;6(1):7-12. doi:10.1016/S1369526602000031 apa: Friml, J. (2003). Auxin transport - Shaping the plant. Current Opinion in Plant Biology. Elsevier. https://doi.org/10.1016/S1369526602000031 chicago: Friml, Jiří. “Auxin Transport - Shaping the Plant.” Current Opinion in Plant Biology. Elsevier, 2003. https://doi.org/10.1016/S1369526602000031. ieee: J. Friml, “Auxin transport - Shaping the plant,” Current Opinion in Plant Biology, vol. 6, no. 1. Elsevier, pp. 7–12, 2003. ista: Friml J. 2003. Auxin transport - Shaping the plant. Current Opinion in Plant Biology. 6(1), 7–12. mla: Friml, Jiří. “Auxin Transport - Shaping the Plant.” Current Opinion in Plant Biology, vol. 6, no. 1, Elsevier, 2003, pp. 7–12, doi:10.1016/S1369526602000031. short: J. Friml, Current Opinion in Plant Biology 6 (2003) 7–12. date_created: 2018-12-11T12:00:43Z date_published: 2003-02-01T00:00:00Z date_updated: 2021-01-12T07:40:17Z day: '01' doi: 10.1016/S1369526602000031 extern: '1' intvolume: ' 6' issue: '1' language: - iso: eng month: '02' oa_version: None page: 7 - 12 publication: Current Opinion in Plant Biology publication_status: published publisher: Elsevier publist_id: '3711' quality_controlled: '1' status: public title: Auxin transport - Shaping the plant type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 6 year: '2003' ... --- _id: '2992' abstract: - lang: eng text: Plants have many polarized cell types, but relatively little is known about the mechanisms that establish polarity. The orc mutant was identified originally by defects in root patterning, and positional cloning revealed that the affected gene encodes STEROL METHYLTRANSFERASE1, which is required for the appropriate synthesis and composition of major membrane sterols. smt1orc mutants displayed several conspicuous cell polarity defects. Columella root cap cells revealed perturbed polar positioning of different organelles, and in the smt1orc root epidermis, polar initiation of root hairs was more randomized. Polar auxin transport and expression of the auxin reporter DR5-β-glucuronidase were aberrant in smt1orc. Patterning defects in smt1orc resembled those observed in mutants of the PIN gene family of putative auxin efflux transporters. Consistently, the membrane localization of the PIN1 and PIN3 proteins was disturbed in smt1orc, whereas polar positioning of the influx carrier AUX1 appeared normal. Our results suggest that balanced sterol composition is a major requirement for cell polarity and auxin efflux in Arabidopsis. author: - first_name: Viola full_name: Willemsen, Viola last_name: Willemsen - first_name: Jirí full_name: Jirí Friml id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: Markus full_name: Grebe, Markus last_name: Grebe - first_name: Albert full_name: Van Den Toorn, Albert last_name: Van Den Toorn - first_name: Klaus full_name: Palme, Klaus last_name: Palme - first_name: Ben full_name: Scheres, Ben last_name: Scheres citation: ama: Willemsen V, Friml J, Grebe M, Van Den Toorn A, Palme K, Scheres B. Cell polarity and PIN protein positioning in Arabidopsis require STEROL METHYLTRANSFERASE1 function. Plant Cell. 2003;15(3):612-625. doi:10.1105/tpc.008433 apa: Willemsen, V., Friml, J., Grebe, M., Van Den Toorn, A., Palme, K., & Scheres, B. (2003). Cell polarity and PIN protein positioning in Arabidopsis require STEROL METHYLTRANSFERASE1 function. Plant Cell. American Society of Plant Biologists. https://doi.org/10.1105/tpc.008433 chicago: Willemsen, Viola, Jiří Friml, Markus Grebe, Albert Van Den Toorn, Klaus Palme, and Ben Scheres. “Cell Polarity and PIN Protein Positioning in Arabidopsis Require STEROL METHYLTRANSFERASE1 Function.” Plant Cell. American Society of Plant Biologists, 2003. https://doi.org/10.1105/tpc.008433. ieee: V. Willemsen, J. Friml, M. Grebe, A. Van Den Toorn, K. Palme, and B. Scheres, “Cell polarity and PIN protein positioning in Arabidopsis require STEROL METHYLTRANSFERASE1 function,” Plant Cell, vol. 15, no. 3. American Society of Plant Biologists, pp. 612–625, 2003. ista: Willemsen V, Friml J, Grebe M, Van Den Toorn A, Palme K, Scheres B. 2003. Cell polarity and PIN protein positioning in Arabidopsis require STEROL METHYLTRANSFERASE1 function. Plant Cell. 15(3), 612–625. mla: Willemsen, Viola, et al. “Cell Polarity and PIN Protein Positioning in Arabidopsis Require STEROL METHYLTRANSFERASE1 Function.” Plant Cell, vol. 15, no. 3, American Society of Plant Biologists, 2003, pp. 612–25, doi:10.1105/tpc.008433. short: V. Willemsen, J. Friml, M. Grebe, A. Van Den Toorn, K. Palme, B. Scheres, Plant Cell 15 (2003) 612–625. date_created: 2018-12-11T12:00:44Z date_published: 2003-03-01T00:00:00Z date_updated: 2021-01-12T07:40:18Z day: '01' doi: 10.1105/tpc.008433 extern: 1 intvolume: ' 15' issue: '3' month: '03' page: 612 - 625 publication: Plant Cell publication_status: published publisher: American Society of Plant Biologists publist_id: '3710' quality_controlled: 0 status: public title: Cell polarity and PIN protein positioning in Arabidopsis require STEROL METHYLTRANSFERASE1 function type: journal_article volume: 15 year: '2003' ... --- _id: '2996' abstract: - lang: eng text: | Plants, compared to animals, exhibit an amazing adaptability and plasticity in their development. This is largely dependent on the ability of plants to form new organs, such as lateral roots, leaves, and flowers during postembryonic development. Organ primordia develop from founder cell populations into organs by coordinated cell division and differentiation. Here, we show that organ formation in Arabidopsis involves dynamic gradients of the signaling molecule auxin with maxima at the primordia tips. These gradients are mediated by cellular efflux requiring asymmetrically localized PIN proteins, which represent a functionally redundant network for auxin distribution in both aerial and underground organs. PIN1 polar localization undergoes a dynamic rearrangement, which correlates with establishment of auxin gradients and primordium development. Our results suggest that PIN-dependent, local auxin gradients represent a common module for formation of all plant organs, regardless of their mature morphology or developmental origin. author: - first_name: Eva full_name: Eva Benková id: 38F4F166-F248-11E8-B48F-1D18A9856A87 last_name: Benková orcid: 0000-0002-8510-9739 - first_name: Marta full_name: Michniewicz, Marta last_name: Michniewicz - first_name: Michael full_name: Sauer, Michael last_name: Sauer - first_name: Thomas full_name: Teichmann, Thomas last_name: Teichmann - first_name: Daniela full_name: Seifertová, Daniela last_name: Seifertová - first_name: Gerd full_name: Jürgens, Gerd last_name: Jürgens - first_name: Jirí full_name: Jirí Friml id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: Benková E, Michniewicz M, Sauer M, et al. Local, efflux-dependent auxin gradients as a common module for plant organ formation. Cell. 2003;115(5):591-602. doi:10.1016/S0092-8674(03)00924-3 apa: Benková, E., Michniewicz, M., Sauer, M., Teichmann, T., Seifertová, D., Jürgens, G., & Friml, J. (2003). Local, efflux-dependent auxin gradients as a common module for plant organ formation. Cell. Cell Press. https://doi.org/10.1016/S0092-8674(03)00924-3 chicago: Benková, Eva, Marta Michniewicz, Michael Sauer, Thomas Teichmann, Daniela Seifertová, Gerd Jürgens, and Jiří Friml. “Local, Efflux-Dependent Auxin Gradients as a Common Module for Plant Organ Formation.” Cell. Cell Press, 2003. https://doi.org/10.1016/S0092-8674(03)00924-3. ieee: E. Benková et al., “Local, efflux-dependent auxin gradients as a common module for plant organ formation,” Cell, vol. 115, no. 5. Cell Press, pp. 591–602, 2003. ista: Benková E, Michniewicz M, Sauer M, Teichmann T, Seifertová D, Jürgens G, Friml J. 2003. Local, efflux-dependent auxin gradients as a common module for plant organ formation. Cell. 115(5), 591–602. mla: Benková, Eva, et al. “Local, Efflux-Dependent Auxin Gradients as a Common Module for Plant Organ Formation.” Cell, vol. 115, no. 5, Cell Press, 2003, pp. 591–602, doi:10.1016/S0092-8674(03)00924-3. short: E. Benková, M. Michniewicz, M. Sauer, T. Teichmann, D. Seifertová, G. Jürgens, J. Friml, Cell 115 (2003) 591–602. date_created: 2018-12-11T12:00:46Z date_published: 2003-11-26T00:00:00Z date_updated: 2021-01-12T07:40:19Z day: '26' doi: 10.1016/S0092-8674(03)00924-3 extern: 1 intvolume: ' 115' issue: '5' month: '11' page: 591 - 602 publication: Cell publication_status: published publisher: Cell Press publist_id: '3706' quality_controlled: 0 status: public title: Local, efflux-dependent auxin gradients as a common module for plant organ formation type: journal_article volume: 115 year: '2003' ... --- _id: '2995' abstract: - lang: eng text: | Axis formation occurs in plants, as in animals, during early embryogenesis. However, the underlying mechanism is not known. Here we show that the first manifestation of the apical-basal axis in plants, the asymmetric division of the zygote, produces a basal cell that transports and an apical cell that responds to the signalling molecule auxin. This apical-basal auxin activity gradient triggers the specification of apical embryo structures and is actively maintained by a novel component of auxin efflux, PIN7, which is located apically in the basal cell. Later, the developmentally regulated reversal of PIN7 and onset of PIN1 polar localization reorganize the auxin gradient for specification of the basal root pole. An analysis of pin quadruple mutants identifies PIN-dependent transport as an essential part of the mechanism for embryo axis formation. Our results indicate how the establishment of cell polarity, polar auxin efflux and local auxin response result in apical-basal axis formation of the embryo, and thus determine the axiality of the adult plant. author: - first_name: Jirí full_name: Jirí Friml id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: Anne full_name: Vieten, Anne last_name: Vieten - first_name: Michael full_name: Sauer, Michael last_name: Sauer - first_name: Dolf full_name: Weijers, Dolf last_name: Weijers - first_name: Heinz full_name: Schwarz, Heinz last_name: Schwarz - first_name: Thorsten full_name: Hamann, Thorsten last_name: Hamann - first_name: Remko full_name: Offringa, Remko last_name: Offringa - first_name: Gerd full_name: Jürgens, Gerd last_name: Jürgens citation: ama: Friml J, Vieten A, Sauer M, et al. Efflux dependent auxin gradients establish the apical basal axis of Arabidopsis. Nature. 2003;426(6963):147-153. doi:10.1038/nature02085 apa: Friml, J., Vieten, A., Sauer, M., Weijers, D., Schwarz, H., Hamann, T., … Jürgens, G. (2003). Efflux dependent auxin gradients establish the apical basal axis of Arabidopsis. Nature. Nature Publishing Group. https://doi.org/10.1038/nature02085 chicago: Friml, Jiří, Anne Vieten, Michael Sauer, Dolf Weijers, Heinz Schwarz, Thorsten Hamann, Remko Offringa, and Gerd Jürgens. “Efflux Dependent Auxin Gradients Establish the Apical Basal Axis of Arabidopsis.” Nature. Nature Publishing Group, 2003. https://doi.org/10.1038/nature02085. ieee: J. Friml et al., “Efflux dependent auxin gradients establish the apical basal axis of Arabidopsis,” Nature, vol. 426, no. 6963. Nature Publishing Group, pp. 147–153, 2003. ista: Friml J, Vieten A, Sauer M, Weijers D, Schwarz H, Hamann T, Offringa R, Jürgens G. 2003. Efflux dependent auxin gradients establish the apical basal axis of Arabidopsis. Nature. 426(6963), 147–153. mla: Friml, Jiří, et al. “Efflux Dependent Auxin Gradients Establish the Apical Basal Axis of Arabidopsis.” Nature, vol. 426, no. 6963, Nature Publishing Group, 2003, pp. 147–53, doi:10.1038/nature02085. short: J. Friml, A. Vieten, M. Sauer, D. Weijers, H. Schwarz, T. Hamann, R. Offringa, G. Jürgens, Nature 426 (2003) 147–153. date_created: 2018-12-11T12:00:45Z date_published: 2003-11-13T00:00:00Z date_updated: 2021-01-12T07:40:19Z day: '13' doi: 10.1038/nature02085 extern: 1 intvolume: ' 426' issue: '6963' month: '11' page: 147 - 153 publication: Nature publication_status: published publisher: Nature Publishing Group publist_id: '3708' quality_controlled: 0 status: public title: Efflux dependent auxin gradients establish the apical basal axis of Arabidopsis type: journal_article volume: 426 year: '2003' ... --- _id: '2994' abstract: - lang: eng text: The regular arrangement of leaves around a plant's stem, called phyllotaxis, has for centuries attracted the attention of philosophers, mathematicians and natural scientists; however, to date, studies of phyllotaxis have been largely theoretical. Leaves and flowers are formed from the shoot apical meristem, triggered by the plant hormone auxin. Auxin is transported through plant tissues by specific cellular influx and efflux carrier proteins. Here we show that proteins involved in auxin transport regulate phyllotaxis. Our data indicate that auxin is transported upwards into the meristem through the epidermis and the outermost meristem cell layer. Existing leaf primordia act as sinks, redistributing auxin and creating its heterogeneous distribution in the meristem. Auxin accumulation occurs only at certain minimal distances from existing primordia, defining the position of future primordia. This model for phyllotaxis accounts for its reiterative nature, as well as its regularity and stability. author: - first_name: Didier full_name: Reinhardt, Didier last_name: Reinhardt - first_name: Eva full_name: Pesce, Eva-Rachele last_name: Pesce - first_name: Pia full_name: Stieger, Pia last_name: Stieger - first_name: Therese full_name: Mandel, Therese last_name: Mandel - first_name: Kurt full_name: Baltensperger, Kurt last_name: Baltensperger - first_name: Malcolm full_name: Bennett, Malcolm last_name: Bennett - first_name: Jan full_name: Traas, Jan last_name: Traas - first_name: Jirí full_name: Jirí Friml id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: Cris full_name: Kuhlemeier, Cris last_name: Kuhlemeier citation: ama: Reinhardt D, Pesce E, Stieger P, et al. Regulation of phyllotaxis by polar auxin transport. Nature. 2003;426(6964):255-260. doi:10.1038/nature02081 apa: Reinhardt, D., Pesce, E., Stieger, P., Mandel, T., Baltensperger, K., Bennett, M., … Kuhlemeier, C. (2003). Regulation of phyllotaxis by polar auxin transport. Nature. Nature Publishing Group. https://doi.org/10.1038/nature02081 chicago: Reinhardt, Didier, Eva Pesce, Pia Stieger, Therese Mandel, Kurt Baltensperger, Malcolm Bennett, Jan Traas, Jiří Friml, and Cris Kuhlemeier. “Regulation of Phyllotaxis by Polar Auxin Transport.” Nature. Nature Publishing Group, 2003. https://doi.org/10.1038/nature02081. ieee: D. Reinhardt et al., “Regulation of phyllotaxis by polar auxin transport,” Nature, vol. 426, no. 6964. Nature Publishing Group, pp. 255–260, 2003. ista: Reinhardt D, Pesce E, Stieger P, Mandel T, Baltensperger K, Bennett M, Traas J, Friml J, Kuhlemeier C. 2003. Regulation of phyllotaxis by polar auxin transport. Nature. 426(6964), 255–260. mla: Reinhardt, Didier, et al. “Regulation of Phyllotaxis by Polar Auxin Transport.” Nature, vol. 426, no. 6964, Nature Publishing Group, 2003, pp. 255–60, doi:10.1038/nature02081. short: D. Reinhardt, E. Pesce, P. Stieger, T. Mandel, K. Baltensperger, M. Bennett, J. Traas, J. Friml, C. Kuhlemeier, Nature 426 (2003) 255–260. date_created: 2018-12-11T12:00:45Z date_published: 2003-11-20T00:00:00Z date_updated: 2021-01-12T07:40:18Z day: '20' doi: 10.1038/nature02081 extern: 1 intvolume: ' 426' issue: '6964' month: '11' page: 255 - 260 publication: Nature publication_status: published publisher: Nature Publishing Group publist_id: '3707' quality_controlled: 0 status: public title: Regulation of phyllotaxis by polar auxin transport type: journal_article volume: 426 year: '2003' ...